CVE-2024-29978Known exploitationPublic exploitNetwork attack vector

Credential disclosure via pre-login password decryption

Published Nov 26, 2024 · Updated Nov 4, 2025

Plaintext password storage in Sharp and Toshiba Tec MFP firmware allows remote attackers to recover user credentials from core dumps. The firmware decrypts stored user passwords into the main process's memory before any user logs in, so generated core dumps retain plaintext values. Retrieval requires access to the printer's network and a separate flaw that exposes core-dump files; the leaked credentials enable printer compromise.

CVSS severity5.9
Medium
EPSS probability1.25%
Next 30 days · Sep 16, 2026
Known exploitationReported
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Plaintext password storage in Sharp and Toshiba Tec MFP firmware allows remote attackers to recover user credentials from core dumps. The firmware decrypts stored user passwords into the main process's memory before any user logs in, so generated core dumps retain plaintext values. Retrieval requires access to the printer's network and a separate flaw that exposes core-dump files; the leaked credentials enable printer compromise.

The record

CVE
CVE-2024-29978
Published
Nov 26, 2024
Updated
Nov 4, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-256, T1003
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 26, 2024CVE publishedPublication date reported by the CVE source.
  2. Nov 4, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

5.9JPCERT/CC and IPACVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationReported
Public exploitPublished

Weakness, pattern, technique

CWE-256Plaintext Storage of a Password
T1003OS Credential Dumping

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Reported exploitation

Technologies

Your stack

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Your stack

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